So-called Crash diets have a serious impact on heart health
The summer is coming and now everyone wants to slim down again quickly a couple of Kilos.
This is why the pounds trying, through Sport, to get rid of diet changes or diets.
Unfortunately, the so-called Crash will always be applied more often diets. Researchers noted, however, that it is possible to reduce a Crash diet the weight, but also the heart health deteriorated.
The scientists at the internationally recognised University of Oxford, found in their investigation into that Crash diets can lead to a temporary deterioration of the heart function. The results of their study were presented at a conference on cardiac imaging, CMR, 2018, in Barcelona, which was organized by the European Society of Cardiology and the Society for Cardiovascular Magnetic Resonance (SCMR).
What is a Crash diet?
By a Crash diet of people in as short a time try much lose weight. The Affected reduce the daily intake of consumed calories. Usually it will not be included in such a diet for a few weeks, more than 800 Kcal per day. If you are going to soon be a Crash diet or a very low calorie diet, you should consult as a precaution before a doctor, at least if you suffer from heart disease, the experts advise.
Crash diets can lower blood pressure and Diabetes reverse
Crash diets have become in the last few years, becoming more and more popular, explains the author, Dr. Jennifer Rayner from the Oxford Centre for Magnetic Resonance, University of Oxford. “These diets have very low calorie content of 600 to 800 kcal per day and can be effective in order to lose weight, lower blood pressure and Diabetes, and reverse, but the effects on the heart have not been investigated”, the researcher explains in a press release.
21 overweight people were used as subjects
In the study, it was examined with the aid of magnetic resonance imaging (MRI) of the influence of a very low calorie diet on cardiac function and the distribution of fat in the abdomen, liver and the heart muscle. In the research participated a total of 21 overweight volunteers. The average age of the participants was 52 years, the average Body Mass Index (BMI) was 37 kg/m2.
Effects of diet on the participants
The participants attended eight weeks of a very low calorie diet of only 600 to 800 kcal per day. Magnetic resonance imaging was carried out at the beginning of the study, after one week and after eight weeks. After only a week, the entire body had decreased fat of six percent, the visceral fat was reduced by eleven percent, and the liver fat by 42 percent, say the scientists. In addition, significant improvements of insulin resistance, triglycerides, glucose and blood were found to be pressure.
After only a week of the heart increased fat content to 44 percent
However, there were also negative effects on the body of the Affected. After a week of heart fat content had risen to 44 percent. This led to a deterioration of the heart function, including a deterioration of the left ventricular pumping function. In addition, the increased fat content of the heart also resulted in a reduction of so-called diastolic function parameters.
After seven weeks, the heart returned to normal fat content again
At the beginning of the eighth week of the study, the fat content of the heart, reduced back and also the function regulated back to the normal value. In part, it could even be an improvement found. Measurements of body fat and cholesterol showed increasing improvements.
Through the diet, the heart muscle takes up the beginning too much fat
The metabolic benefits of a very low calorie diet, such as a reduction in the Leberfetts and the reversal of Diabetes, should be expected to also improve the function of the heart. Instead, the cardiac function deteriorated in the first week, before, later, finally, an improvement occurred, explain the study authors.
The sudden calorie loss lead to fat from different Parts of the body into the blood and from the heart muscle. The muscle of the heart prefers fat or sugar as fuel, and the excess supply of fat as a result of his function, adds the expert. After an acute period, in which the body to adapt to a drastic calorie restriction, improving the fat content and the function of the heart.
You speak in front of the diet with your doctor
“If you have heart problems, you need to speak with your doctor before you start with a very low calorie diet or fasting. People with heart problems may have to at this early stage, more symptoms, and therefore, the diet should be monitored,“ explains Dr. Rayner in the press release. Healthy people will not notice the change of cardiac function in the early stages of the diet, probably, adds the Doctor.
Further research is needed
In the case of persons with existing heart problems, the Crash diet can lead to various health problems. In the case of severe symptoms of heart failure such as shortness of breath or an increased risk of heart rhythm disorders, such a diet can aggravate the condition. Further research is necessary, however, to examine the impact of acute reduction of cardiac function more precisely. (as)